Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883562 | Method of making a photosensor | Hirofumi Ogawa, Kenji Sameshima, Tadaaki Hirai, Takaaki Unnai, Keiichi Shidara +3 more | 1989-11-28 |
| 4866332 | Target of image pickup tube | Yukio Takasaki, Tatsuo Makishima, Kazutaka Tsuji, Tadaaki Hirai, Eisuke Inoue +9 more | 1989-09-12 |